List of years in science (Table)
… 1663 • 1664 • 1665 • 1666 • 1667 • 1668 • 1669 •    1670 • 1671 • 1672 – 1673 – 1674 • 1675 • 1676 •    1677 • 1678 • 1679 • 1680 • 1681 • 1682 • 1683 …
Related time period or subjects
… 1670 • 1671 • 1672 – 1673 – 1674 • 1675 • 1676 … … 1640s • 1650s • 1660s – 1670s – 1680s • 1690s • 1700s … … 16th century – 17th century – 18th century …
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The year 1673 in science and technology involved some significant events.

Technology

Births

Deaths

• Thomas Willis, English physician who contributed to knowledge of the nervous and cardiovascular systems (born 1621)
• Regnier de Graaf, Dutch physician and anatomist who discovered the ovarian follicles (born 1641)